This is the bike on which Jens Voigt broke the hour record.

Voigt rode 51.115km in 60 minutes in the Velodrome Suisse in Grenchen on a custom Trek Speed Concept time trial bike, modified for use on the track.

The hugely-popular German has now retired from the sport after a 17-year professional career in which the 43-year-old wore the Tour de France yellow jersey twice, and won two individual stages, and developed a reputation for his fearless propensity to attack.

Let’s take a closer look at the machine on which Voigt etched his name into cycling history.